222 lines
6.1 KiB
C
222 lines
6.1 KiB
C
/* USER CODE BEGIN Header */
|
|
/**
|
|
******************************************************************************
|
|
* @file i2s.c
|
|
* @brief This file provides code for the configuration
|
|
* of the I2S instances.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2024 STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
/* USER CODE END Header */
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "i2s.h"
|
|
|
|
/* USER CODE BEGIN 0 */
|
|
|
|
/* USER CODE END 0 */
|
|
|
|
I2S_HandleTypeDef hi2s2;
|
|
I2S_HandleTypeDef hi2s3;
|
|
|
|
/* I2S2 init function */
|
|
void MX_I2S2_Init(void)
|
|
{
|
|
|
|
/* USER CODE BEGIN I2S2_Init 0 */
|
|
|
|
/* USER CODE END I2S2_Init 0 */
|
|
|
|
/* USER CODE BEGIN I2S2_Init 1 */
|
|
|
|
/* USER CODE END I2S2_Init 1 */
|
|
hi2s2.Instance = SPI2;
|
|
hi2s2.Init.Mode = I2S_MODE_MASTER_TX;
|
|
hi2s2.Init.Standard = I2S_STANDARD_PHILIPS;
|
|
hi2s2.Init.DataFormat = I2S_DATAFORMAT_16B;
|
|
hi2s2.Init.MCLKOutput = I2S_MCLKOUTPUT_DISABLE;
|
|
hi2s2.Init.AudioFreq = I2S_AUDIOFREQ_96K;
|
|
hi2s2.Init.CPOL = I2S_CPOL_LOW;
|
|
hi2s2.Init.ClockSource = I2S_CLOCK_PLL;
|
|
hi2s2.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_ENABLE;
|
|
if (HAL_I2S_Init(&hi2s2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/* USER CODE BEGIN I2S2_Init 2 */
|
|
|
|
/* USER CODE END I2S2_Init 2 */
|
|
|
|
}
|
|
/* I2S3 init function */
|
|
void MX_I2S3_Init(void)
|
|
{
|
|
|
|
/* USER CODE BEGIN I2S3_Init 0 */
|
|
|
|
/* USER CODE END I2S3_Init 0 */
|
|
|
|
/* USER CODE BEGIN I2S3_Init 1 */
|
|
|
|
/* USER CODE END I2S3_Init 1 */
|
|
hi2s3.Instance = SPI3;
|
|
hi2s3.Init.Mode = I2S_MODE_MASTER_TX;
|
|
hi2s3.Init.Standard = I2S_STANDARD_PHILIPS;
|
|
hi2s3.Init.DataFormat = I2S_DATAFORMAT_16B;
|
|
hi2s3.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
|
|
hi2s3.Init.AudioFreq = I2S_AUDIOFREQ_96K;
|
|
hi2s3.Init.CPOL = I2S_CPOL_LOW;
|
|
hi2s3.Init.ClockSource = I2S_CLOCK_PLL;
|
|
hi2s3.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE;
|
|
if (HAL_I2S_Init(&hi2s3) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/* USER CODE BEGIN I2S3_Init 2 */
|
|
|
|
/* USER CODE END I2S3_Init 2 */
|
|
|
|
}
|
|
|
|
void HAL_I2S_MspInit(I2S_HandleTypeDef* i2sHandle)
|
|
{
|
|
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
if(i2sHandle->Instance==SPI2)
|
|
{
|
|
/* USER CODE BEGIN SPI2_MspInit 0 */
|
|
|
|
/* USER CODE END SPI2_MspInit 0 */
|
|
/* I2S2 clock enable */
|
|
__HAL_RCC_SPI2_CLK_ENABLE();
|
|
|
|
__HAL_RCC_GPIOC_CLK_ENABLE();
|
|
__HAL_RCC_GPIOB_CLK_ENABLE();
|
|
/**I2S2 GPIO Configuration
|
|
PC2 ------> I2S2_ext_SD
|
|
PC3 ------> I2S2_SD
|
|
PB10 ------> I2S2_CK
|
|
PB12 ------> I2S2_WS
|
|
*/
|
|
GPIO_InitStruct.Pin = GPIO_PIN_2;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF6_I2S2ext;
|
|
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = PDM_OUT_Pin;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
|
|
HAL_GPIO_Init(PDM_OUT_GPIO_Port, &GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = CLK_IN_Pin|GPIO_PIN_12;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF5_SPI2;
|
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
|
|
/* USER CODE BEGIN SPI2_MspInit 1 */
|
|
|
|
/* USER CODE END SPI2_MspInit 1 */
|
|
}
|
|
else if(i2sHandle->Instance==SPI3)
|
|
{
|
|
/* USER CODE BEGIN SPI3_MspInit 0 */
|
|
|
|
/* USER CODE END SPI3_MspInit 0 */
|
|
/* I2S3 clock enable */
|
|
__HAL_RCC_SPI3_CLK_ENABLE();
|
|
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
__HAL_RCC_GPIOC_CLK_ENABLE();
|
|
/**I2S3 GPIO Configuration
|
|
PA4 ------> I2S3_WS
|
|
PC7 ------> I2S3_MCK
|
|
PC10 ------> I2S3_CK
|
|
PC12 ------> I2S3_SD
|
|
*/
|
|
GPIO_InitStruct.Pin = I2S3_WS_Pin;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
|
|
HAL_GPIO_Init(I2S3_WS_GPIO_Port, &GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = I2S3_MCK_Pin|I2S3_SCK_Pin|I2S3_SD_Pin;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
|
|
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
|
|
|
|
/* USER CODE BEGIN SPI3_MspInit 1 */
|
|
|
|
/* USER CODE END SPI3_MspInit 1 */
|
|
}
|
|
}
|
|
|
|
void HAL_I2S_MspDeInit(I2S_HandleTypeDef* i2sHandle)
|
|
{
|
|
|
|
if(i2sHandle->Instance==SPI2)
|
|
{
|
|
/* USER CODE BEGIN SPI2_MspDeInit 0 */
|
|
|
|
/* USER CODE END SPI2_MspDeInit 0 */
|
|
/* Peripheral clock disable */
|
|
__HAL_RCC_SPI2_CLK_DISABLE();
|
|
|
|
/**I2S2 GPIO Configuration
|
|
PC2 ------> I2S2_ext_SD
|
|
PC3 ------> I2S2_SD
|
|
PB10 ------> I2S2_CK
|
|
PB12 ------> I2S2_WS
|
|
*/
|
|
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_2|PDM_OUT_Pin);
|
|
|
|
HAL_GPIO_DeInit(GPIOB, CLK_IN_Pin|GPIO_PIN_12);
|
|
|
|
/* USER CODE BEGIN SPI2_MspDeInit 1 */
|
|
|
|
/* USER CODE END SPI2_MspDeInit 1 */
|
|
}
|
|
else if(i2sHandle->Instance==SPI3)
|
|
{
|
|
/* USER CODE BEGIN SPI3_MspDeInit 0 */
|
|
|
|
/* USER CODE END SPI3_MspDeInit 0 */
|
|
/* Peripheral clock disable */
|
|
__HAL_RCC_SPI3_CLK_DISABLE();
|
|
|
|
/**I2S3 GPIO Configuration
|
|
PA4 ------> I2S3_WS
|
|
PC7 ------> I2S3_MCK
|
|
PC10 ------> I2S3_CK
|
|
PC12 ------> I2S3_SD
|
|
*/
|
|
HAL_GPIO_DeInit(I2S3_WS_GPIO_Port, I2S3_WS_Pin);
|
|
|
|
HAL_GPIO_DeInit(GPIOC, I2S3_MCK_Pin|I2S3_SCK_Pin|I2S3_SD_Pin);
|
|
|
|
/* USER CODE BEGIN SPI3_MspDeInit 1 */
|
|
|
|
/* USER CODE END SPI3_MspDeInit 1 */
|
|
}
|
|
}
|
|
|
|
/* USER CODE BEGIN 1 */
|
|
|
|
/* USER CODE END 1 */
|